I am also facing similar issue. I am using Hortownworks Docker Sandbox HDP (64-bit) configured with 8GB RAM through Oracle VM Virtual Box in my laptop with total RAM capacity 12GB. When I start running Hortonworks Sandbox, I am seeing only some hadoop services are getting started. Both YARN and MapReduce2 services are starting for few seconds and going down. Can someone help me what could be issue here? I am trying to run some MapReduce programs written using Python from Linux environment and it is getting stuck after the last line Running step 1 of 1... Please see the mapreduce program I am running below. [maria_dev@sandbox ~]$ python RatingsBreakdown.py -r hadoop --hadoop-streaming-jar /usr/hdp/current/hadoop-mapreduce-client/hadoop-streaming.jar u.data No configs found; falling back on auto-configuration Looking for hadoop binary in $PATH... Found hadoop binary: /usr/bin/hadoop Using Hadoop version 126.96.36.199.6.0.3 Creating temp directory /tmp/RatingsBreakdown.maria_dev.20170806.043802.334494 Copying local files to hdfs:///user/maria_dev/tmp/mrjob/RatingsBreakdown.maria_dev.20170806.043802.334494/files/... Running step 1 of 1... I am not sure whether the root cause of this issue is related to not starting YARN and MapReduce2 services successfully. Please see the screenshot of Ambari UI with all the services status.
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